(pick robot3 ball2 room2 lgripper3)
(move robot3 room2 room1)
(drop robot3 ball2 room1 lgripper3)
(move robot1 room1 room2)
(pick robot1 ball3 room2 lgripper1)
(pick robot1 ball4 room2 rgripper1)
(move robot1 room2 room1)
(drop robot1 ball3 room1 lgripper1)
(drop robot1 ball4 room1 rgripper1)
; cost = 9 (unit cost)
